Fertilizer and process of manufacturing the same.



Unrrnn eras? FERTILIZER AND PTB-QCESS OF IEANUFAbTlTEIHC-i- No Drawing.

Specification of Letters Patent.

Application filed December 13, 1910. Serial no. 591115;.

rnsonon irnosnt, or NEUSTADT, GERNUL;

the following to be a full, clear, and exactde scription of the same.

The subject-matter of this invention is a fertilizer containing limenitrogen (calcium cyanamid) and process of manufacturing the same.

The fertilizer consists of lime nitrogen (calcium cyanamid) and wastelyes of the sulfite process for manufacturing wood-pulp (cellulose). Thesulfite lyes may be neutralized.

The process of manufacture consists in intimately mixing calciumcyanamid with sulfite lyes. Apparently the organic compounds present inthe suliite lyes obtained in the manufacture of cellulose act chemicallyon calcium cyanainid. But nothing can be said as to the nature of thechemical action. That indeed the organic compounds of the sulfite lyesare essential for the formation of the new fertilizer and its actionsand that it is not the small quantity of bisulfite of lime which isstill in the lyes which roduces the action follows from the fact thatthe favorable action is obtained even when the lyes are neutralizedbefore their employment. F or neutralizing them carbonate of lime ispreferably employed. As stated above, the sulfite lycs may beneutralized before mixing them with the calcium cyanamid by employingcarbonate of lime or the like.

Example 1 kg. calcium cyanamid are intimately mixed with 150 liters ofsulfite lye of 14.5 Be. While constantly agitating the same, 100 litersof. lye of.38.5 Be. are then gradually added. TVhen mixed and left tostand thev mass soon becomes solid and so dry that it can be ground.When the stated relative quantities are employed 2&0

kg. dry new fertilizer are obtained. The fertilizer is distinguished byits acting more rapidly and better than lime nitrogen (calciumcyanamid). Also, the organic substances which are present, as well asthe potassium having its origin in the sulfite lyes favor its action.The concentration of the lye which is first added to the c cium cyanamidmay be stronger than in which eventless of the second admixture of thestronger lye will be taken.

Example 2: kg. calcium eyanamid are mixed witl. 1000 liters of ordinarynon-in spissated sullite lye of .5 Be, whereiqion it is preferablyheated. It is then left to stand for a [long time until no moreprecipitate is formed. The liquid is th A separated from the precigitz"'cashed with wat to remove the re. if.

It is not necessary to separate the prccipitate from the liquid, on thecontrary, the entire mixture may be emplrwed for fertilization. l

The chemical changes will be seen from the following analytical.rcsults: c. ems. of the original sulfite lye hare dissolved in them10.450 organ. substances, and 100 c. ems. of the treat-ed lye only gin,including 0.136 L 11111111 so that they still contain 1. organ.substances from the lyes.

1000 1t. 104 .500 gr.=10'$,500 h organ. sub. in the original lycs.liO01t.x 32.140 gr.= 19,2 organ. sub. in the treatedlyes.

So that 85,216 kg. 0 an. so. .==81.55% of the O!lf n. t, antrty havebeen precipitated.

In the 600 liters are also contained GOOXLBGD gr. 0.816 kg. ammonia (N30.673 kg. nitrogen (N) Q11 the other hand, the 05 kilograms of calciumcyanamid calcula tet t 15% N contained 11.700 kilograms oi rogcn, sothat 5.72% thereof converted into soluble ammoni he compositlor urallyVary seem the lime-nitrogen ing as whether or hot. The followcompositions for the lyes:

n .LUi'ullliiQJ. will hit J. a Y Ir J3 to the composition or e iy andaccordproximate and hot o f1 From the Iyes: 50% dry o .ui'c Substcncesslowly I claim 1. new article manufacture, a fertilizer composed ofcalcium cyanamid and sultite cellulose lye.

iyes are cold Wasts lye and mi cyanmnid.

lave signed. my the presence 91.

mung FY a1

